{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "cube_H", "op": { "type": "Cube", "size": { "x": 100, "y": 40, "z": 8 } } },
    "2": { "id": 2, "name": "slab_H_|y|<=20", "op": { "type": "Translate", "child": 1, "offset": { "x": -50, "y": -20, "z": 0 } } },

    "3": { "id": 3, "name": "cube_V", "op": { "type": "Cube", "size": { "x": 40, "y": 100, "z": 8 } } },
    "4": { "id": 4, "name": "slab_V_|x|<=20", "op": { "type": "Translate", "child": 3, "offset": { "x": -20, "y": -50, "z": 0 } } },

    "5": { "id": 5, "name": "slab_Dplus_|x+y|<=28.284", "op": { "type": "Rotate", "child": 4, "angles": { "x": 0, "y": 0, "z": 45 } } },
    "6": { "id": 6, "name": "slab_Dminus_|x-y|<=28.284", "op": { "type": "Rotate", "child": 4, "angles": { "x": 0, "y": 0, "z": -45 } } },

    "7": { "id": 7, "name": "intersect_H_V", "op": { "type": "Intersection", "left": 2, "right": 4 } },
    "8": { "id": 8, "name": "intersect_(H_V)_Dplus", "op": { "type": "Intersection", "left": 7, "right": 5 } },
    "9": { "id": 9, "name": "octagon_prism", "op": { "type": "Intersection", "left": 8, "right": 6 } },

    "10": { "id": 10, "name": "hole_cylinder_base", "op": { "type": "Cylinder", "radius": 2.5, "height": 8, "segments": 32 } },

    "11": { "id": 11, "name": "hole_0deg_(15,0)", "op": { "type": "Translate", "child": 10, "offset": { "x": 15, "y": 0, "z": 0 } } },
    "12": { "id": 12, "name": "hole_45deg_(10.6066,10.6066)", "op": { "type": "Translate", "child": 10, "offset": { "x": 10.6066017178, "y": 10.6066017178, "z": 0 } } },
    "13": { "id": 13, "name": "hole_90deg_(0,15)", "op": { "type": "Translate", "child": 10, "offset": { "x": 0, "y": 15, "z": 0 } } },
    "14": { "id": 14, "name": "hole_135deg_(-10.6066,10.6066)", "op": { "type": "Translate", "child": 10, "offset": { "x": -10.6066017178, "y": 10.6066017178, "z": 0 } } },
    "15": { "id": 15, "name": "hole_180deg_(-15,0)", "op": { "type": "Translate", "child": 10, "offset": { "x": -15, "y": 0, "z": 0 } } },
    "16": { "id": 16, "name": "hole_225deg_(-10.6066,-10.6066)", "op": { "type": "Translate", "child": 10, "offset": { "x": -10.6066017178, "y": -10.6066017178, "z": 0 } } },
    "17": { "id": 17, "name": "hole_270deg_(0,-15)", "op": { "type": "Translate", "child": 10, "offset": { "x": 0, "y": -15, "z": 0 } } },
    "18": { "id": 18, "name": "hole_315deg_(10.6066,-10.6066)", "op": { "type": "Translate", "child": 10, "offset": { "x": 10.6066017178, "y": -10.6066017178, "z": 0 } } },

    "19": { "id": 19, "name": "holes_union_0_45", "op": { "type": "Union", "left": 11, "right": 12 } },
    "20": { "id": 20, "name": "holes_union__+90", "op": { "type": "Union", "left": 19, "right": 13 } },
    "21": { "id": 21, "name": "holes_union__+135", "op": { "type": "Union", "left": 20, "right": 14 } },
    "22": { "id": 22, "name": "holes_union__+180", "op": { "type": "Union", "left": 21, "right": 15 } },
    "23": { "id": 23, "name": "holes_union__+225", "op": { "type": "Union", "left": 22, "right": 16 } },
    "24": { "id": 24, "name": "holes_union__+270", "op": { "type": "Union", "left": 23, "right": 17 } },
    "25": { "id": 25, "name": "holes_union__+315", "op": { "type": "Union", "left": 24, "right": 18 } },

    "26": { "id": 26, "name": "octagonal_flange_with_holes", "op": { "type": "Difference", "left": 9, "right": 25 } }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    { "root": 26, "material": "default" }
  ]
}